Long-term follow-up in sacroiliac joint pain patients treated with radiofrequency ablative therapy

Romero, Flávio Ramalho; Vital, Roberto Bezerra; Zanini, Marco Antônio; Ducati, Luis Gustavo; Gabarra, Roberto Colichio

doi:10.1590/0004-282X20150049

Brasil

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ARTICLES • Arq. Neuro-Psiquiatr. 73 (6) • June 2015 • https://doi.org/10.1590/0004-282X20150049 linkcopy

Long-term follow-up in sacroiliac joint pain patients treated with radiofrequency ablative therapy

Seguimento longo em pacientes com sacroileíte submetidos a terapia de radiofrequência ablativa

Authorship SCIMAGO INSTITUTIONS RANKINGS

Sacroiliac joint (SIJ) pain is responsible for up to 40% of all cases of lumbar back pain.

Objective Report the long-term efficacy of radiofrequency denervation for sacroiliac joint pain at six, twelve and eighteen months.

Method Third-two adults’ patients with sacroiliac join pain diagnosis were included for a prospective study. Primary outcome measure was pain intensity on the Numeric Rating Scale (NRS). Secondary outcome measure was Patient Global Impression of Change Scale (PGIC).

Results Short-term pain relief was observed, with the mean NRS pain score decreasing from 7.7 ± 1.8 at baseline to 2.8 ± 1.2 at one month and to 3.1 ± 1.9 at six months post-procedure (p < 0.001). Long-term pain relief was sustained at twelve and eighteen months post-procedure, with NRS pain remaining at 3.4 ± 2.1 and 4.0 ± 2.7, respectively.

Conclusion Radiofrequency denervation of the SIJ can significantly reduce pain in selected patients with sacroiliac syndrome.

sacroiliac joint pain; radiofrequency; numeric rating scale; patient global impression of change scale

Case	Age	Gender	SIJ involved	Pre-op NRS	1-m NRS	6-m NRS	12-m NRS	18-m NRS	PGIC
1	58	M	Right	7	3	4	4	4	1
2	62	F	Bilateral	8	2	3	4	4	2
3	49	F	Left	9	3	3	4	5	1
4	72	M	Right	6	2	2	2	3	2
5	67	F	Bilateral	8	1	2	1	2	3
6	56	M	Right	9	2	3	3	4	1
7	71	M	Bilateral	8	1	3	2	3	2
8	59	M	Bilateral	6	2	2	2	3	1
9	54	F	Right	7	3	3	3	4	0
10	63	M	Bilateral	8	5	4	5	5	2
11	62	M	Left	7	4	4	4	5	-1
12	70	F	Right	9	5	5	5	5	1
13	53	M	Bilateral	10	3	4	5	5	1
14	68	F	Right	6	2	3	3	4	2
15	61	F	Bilateral	8	4	4	4	4	1
16	68	M	Bilateral	7	3	3	3	5	-1
17	46	F	Left	9	5	4	4	5	-1
18	52	M	Bilateral	7	4	4	4	4	1
19	59	M	Right	8	4	3	4	4	1
20	51	M	Left	6	3	3	4	5	1
21	49	M	Right	8	2	2	3	3	3
22	61	F	Bilateral	9	1	1	2	3	3
23	63	M	Bilateral	10	5	5	5	4	1
24	48	F	Left	6	1	1	2	3	0
25	56	F	Right	7	4	4	4	4	1
26	52	M	Bilateral	8	4	4	5	4	1
27	67	F	Left	8	3	3	4	5	1
28	51	F	Bilateral	7	4	5	5	4	1
29	53	M	Right	9	1	2	2	4	3
30	63	F	Bilateral	9	1	2	2	3	3
31	42	M	Bilateral	7	2	2	2	4	2
32	61	M	Right	8	2	3	3	5	1

NRS of pain	Mean	Standard deviation	p value
Pre-operative	7.7	1.8	< 0.001
After 1 month	2.8	1.2	< 0.001
After 6 months	3.1	1.9	< 0.001
After 12 months	3.4	2.1	< 0.001
After 18 months	4.0	2.7	< 0.001

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[TFN1] M: male; F: female; SIJ: sacroiliac joint; Pre-op: preoperative; m: months; NRS: numeric rate scale of pain; PGIC: Patient Global Impression of Change scale. Age in years.